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2. U.S. Environmental Protection Agency, Health Effects Test Guidelines OPPTS 870.5100, Bacterial Reverse Mutation Test, 1998, http://www.epa.gov/docs/OPPTS_Harmonized/870_Health_Effects_Test_Guidelines/Series/870-5100.pdf.
3. International Conference on Harmonisation of Technical Requirements for Registration of Pharmaceuticals for Human Use: ICH Harmonised Tripartite Guideline S2B, Genotoxicity: A Standard Battery for Genotoxicity Testing of Pharmaceuticals, 1997, http://www.ifpma.org/pdfifpma/s2b.pdf.
4. U.S. Food and Drug Administration Toxicological Principles for the Safety of Food Ingredients Redbook 2000, 2000, http://vm.cfsan.fda.gov/∼redbook/red-toca.html.
5. Chemicals mutagenic in Salmonella typhimurium strain TA1535 but not in TA100;Prival;Mutat. Res.,1998